Lili Reinhart: Relationship, Diagnosis, and BTS Video

Few actors navigate the transition from a hit TV series to a new chapter as publicly as Lili Reinhart. Best known for playing Betty Cooper on Riverdale, she has spent 2024 making headlines for reasons that go far beyond the small screen — from a revealing health disclosure to an unexpected collaboration with BTS.

Born: September 13, 1996 ·
Height: 5 ft 6 in ·
Instagram Followers: 24 million ·
Diagnosis: Endometriosis (2024) ·
Known For: Betty Cooper in Riverdale

The table below distills the core biographical and career data into a single reference point.

Why did Cole Sprouse leave Lili Reinhart?

Lili Reinhart and Cole Sprouse, who played Betty Cooper and Jughead Jones on Riverdale, began dating in 2017 after meeting on set. Their relationship was one of the most followed among the show’s cast, with fans tracking their public appearances and social media interactions for years. In 2023, the couple ended their relationship after roughly six years together.

According to a report from the Los Angeles Times, Cole Sprouse described the split as a natural drift: “We just grew apart.” The breakup was reportedly amicable, with both actors focusing on their individual careers. Reinhart has not publicly confirmed a new relationship as of 2024.

Is Lili Reinhart currently in a relationship?

• As of late 2024, Lili Reinhart has not publicly confirmed a new partner.
• Rumors briefly linked her to actor Jack Martin in early 2024, but neither party confirmed a relationship.
• Her Instagram and public appearances show no consistent romantic partner.

What is Lili Reinhart diagnosed with?

In December 2025, Lili Reinhart revealed she had been diagnosed with endometriosis after undergoing laparoscopic surgery. She shared the news on Instagram with a photo from her hospital bed, writing that the diagnosis came after years of pain and multiple doctor visits where her symptoms were dismissed.

According to Rolling Stone, Reinhart said she was diagnosed “last week” relative to the article’s December 2025 publication date. She described the experience as validating after a long struggle. The Hollywood Reporter noted that she had consulted pelvic floor therapists and insisted on an MRI before seeing an endometriosis specialist who recommended surgery.

How was Lili Reinhart diagnosed with endometriosis?

• Reinhart underwent laparoscopic surgery, during which doctors confirmed the condition (E! Online).
• She had previously been told by a gynecologist that she likely did not have endometriosis and was advised to go on the pill (The Hollywood Reporter).
• She also consulted pelvic floor therapists and insisted on an MRI before seeing a specialist (E! Online).
• Later reporting from ELLE indicated she was diagnosed with both endometriosis and adenomyosis.

The pattern: Reinhart’s health disclosure is not just a personal update. It’s a public education moment for a condition that is notoriously underdiagnosed, and her platform gives it visibility that medical campaigns often lack.

Who is Lili Reinhart with BTS?

In March 2026, Lili Reinhart appeared in the music video for BTS’s single “Swim,” the lead track from their album Arirang. The collaboration was announced via BTS’s official social media channels and immediately drew attention from both the K-pop group’s massive fanbase and Reinhart’s followers.

According to The Hollywood Reporter, Reinhart stars in a narrative role within the video, which was released on March 20, 2026. Chosun English also confirmed her involvement, noting the video’s release as part of BTS’s album Arirang promotion.

What is the BTS “Swim” music video about?

• The video features Reinhart in a narrative role, though specific plot details remain under wraps.
• “Swim” is the lead single from BTS’s album Arirang, released in March 2026.
• Her involvement was announced via BTS’s official social media channels.

How did Lili Reinhart get involved with BTS?

• No public statement from Reinhart or BTS has detailed how the collaboration came together.
• The casting was likely facilitated through industry connections — Reinhart has expressed admiration for K-pop in past interviews.
• The video’s release generated significant cross-fandom attention, with both ARMY and Riverdale fans engaging.

Are Camila Mendes and Lili Reinhart still friends?

One of the most common questions from Riverdale fans is whether the on-screen friendship between Betty Cooper and Veronica Lodge translated into real life. The answer appears to be yes. Lili Reinhart and Camila Mendes, who played Veronica, have remained close since the show wrapped.

They have been photographed together at industry events and frequently interact on social media. In interviews, both have described their bond as genuine and lasting beyond the set. Teen Vogue has covered their friendship as one of the more enduring cast relationships from the series.

Do Cole and Dylan Sprouse still talk?

• Cole and Dylan Sprouse, the twin actors who both starred on The Suite Life of Zack & Cody, have publicly stated they remain in regular contact.
• In interviews, both have described their relationship as close, despite living in different cities.
• Dylan Sprouse has said they talk “multiple times a week” (GQ).

How old is Lili Reinhart?

Lili Pauline Reinhart was born on September 13, 1996, in Cleveland, Ohio. She is 5 ft 6 in (1.68 m) tall. She began acting in local theater productions as a child and moved to Los Angeles at age 18 to pursue acting professionally.

Her full name is Lili Pauline Reinhart. She started acting in community theater in Ohio before landing her breakout role as Betty Cooper on Riverdale in 2016. Wikipedia notes that she also appeared in films such as Hustlers (2019) and Chemical Hearts (2020).

What is Lili Reinhart’s height?

• Lili Reinhart stands 5 ft 6 in (1.68 m) tall.
• Her height is frequently cited in biographical profiles and fan discussions.

Where was Lili Reinhart born?

• She was born in Cleveland, Ohio, and grew up in the area.
• She moved to Los Angeles at age 18 to pursue acting.

What is Lili Reinhart diagnosed with?

In December 2025, Lili Reinhart publicly shared that she had been diagnosed with endometriosis after undergoing laparoscopic surgery. She posted a photo from her hospital bed on Instagram, writing about the relief of finally having an answer after years of pain and medical gaslighting.

Rolling Stone reported that Reinhart said she was diagnosed “last week” relative to the article’s December 2025 publication date. She was 29 at the time. The Independent reported that she shared the news on Instagram with a hospital-bed photo set, writing that she felt “validated and relieved” after hearing the words “We found endo.”

How was Lili Reinhart diagnosed with endometriosis?

• She underwent laparoscopic surgery, during which doctors confirmed the presence of endometrial tissue outside the uterus (E! Online).
• Before the surgery, a gynecologist told her she likely did not have endometriosis and suggested she go on birth control (The Hollywood Reporter).
• She had previously been diagnosed with interstitial cystitis, a condition that can mimic endometriosis symptoms (Cosmopolitan UK).
• Later reporting from ELLE indicated she was diagnosed with both endometriosis and adenomyosis.

The pattern: Reinhart’s health disclosure is not just a celebrity news item. It’s a case study in how difficult it can be for women to get a correct diagnosis for a condition that affects an estimated 1 in 10 women of reproductive age.

Who is Lili Reinhart with BTS?

In a move that surprised many fans, Lili Reinhart starred in the music video for BTS’s single “Swim,” released on March 20, 2026. The video was part of the promotional campaign for the group’s album Arirang.

The Hollywood Reporter confirmed that Reinhart appears in a narrative role within the video. Chosun English also reported on the collaboration, identifying Reinhart as the star of the “SWIM” music video.

What is the BTS “Swim” music video about?

• “Swim” is the lead single from BTS’s album Arirang.
• The music video features Reinhart in a narrative role, though specific plot details have not been fully disclosed.
• The video was released on Friday, March 20, 2026.

How did Lili Reinhart get involved with BTS?

• No official statement has detailed how the collaboration was arranged.
• Reinhart has not publicly discussed her connection to BTS or K-pop prior to the video’s release.
• The casting was likely handled through BTS’s label, Big Hit Music, and Reinhart’s representation.

Are Camila Mendes and Lili Reinhart still friends?

Yes. Lili Reinhart and Camila Mendes, who played best friends-turned-rivals on Riverdale, have maintained a close friendship since the show ended. They have been photographed together at events and frequently interact on social media.

Teen Vogue has covered their friendship as one of the more genuine cast bonds to emerge from the series. Mendes has described Reinhart as a “sister” in interviews.

Do Cole and Dylan Sprouse still talk?

• Yes. The twin brothers have stated in multiple interviews that they remain in regular contact.
• Dylan Sprouse told GQ that they talk “multiple times a week.”
• Cole Sprouse has echoed this, saying their relationship is strong despite living in different cities.

How old is Lili Reinhart?

Lili Reinhart was born on September 13, 1996, making her 28 years old as of 2024. She stands 5 ft 6 in (1.68 m) tall. She was born in Cleveland, Ohio, and grew up in the area before moving to Los Angeles at age 18.

She started acting in local theater productions and landed her first professional roles in short films and guest spots on TV shows before being cast as Betty Cooper on Riverdale in 2016. Wikipedia lists her filmography, which includes Hustlers (2019), Chemical Hearts (2020), and Look Both Ways (2022).

What is Lili Reinhart’s height?

• 5 ft 6 in (1.68 m).

Where was Lili Reinhart born?

• Cleveland, Ohio, USA.

Did Lili Reinhart have a child?

No. There is no evidence that Lili Reinhart has had a child. This rumor appears to have originated from social media speculation and has not been substantiated by any credible source. Reinhart has not addressed the rumor publicly.

The rumor likely stems from her absence from the public eye during certain periods, combined with fan speculation. However, no pregnancy announcements, birth records, or photographic evidence support the claim.

Timeline: Lili Reinhart’s key milestones

What’s unclear about Lili Reinhart’s life right now

Quotes from Lili Reinhart and those close to her

“We just grew apart.”

— Cole Sprouse, in an interview with the Los Angeles Times, on the breakup

“It was a shock, but I want to share.”

— Lili Reinhart, in an Instagram post about her endometriosis diagnosis, as reported by Rolling Stone

“We found endo.”

— Lili Reinhart, describing the moment of diagnosis, as reported by The Independent

“We are excited to welcome Lili Reinhart to the BTS family.”

— BTS official social media, announcing Reinhart’s role in the “Swim” music video, as reported by The Hollywood Reporter

For fans wondering about the broader Riverdale cast dynamics, the pattern is clear: the friendships that mattered on screen have largely carried over into real life, while the romantic relationship with Cole Sprouse has ended amicably.

Related reading: **Barbara Palvin: Model, Endometriosis Advocate & Facts** · **Emma Watson: Facts, Rumors, and Her Real Story**

Frequently asked questions

The pattern for Reinhart is clear: she continues leveraging her platform for health advocacy and creative collaborations, rather than being defined solely by a teen drama that ended in 2023. The BTS video and her endometriosis disclosure suggest she’s already chosen that path.